console.log("加载拓展js")
//var s = '你好 {0} {1}'.format('value1', 123)
//console.log(s)
if (!String.prototype.format) {
  String.prototype.format = function() {
    var args = arguments
    return this.replace(/{(\d+)}/g, function(match, number) { 
      return typeof args[number] != 'undefined'
        ? args[number]
        : match
    })
  }
}